697  
CDUS41 KBOX 200537  
CLIBOS  
 
CLIMATE REPORT  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
137 AM EDT FRI OCT 20 2023  
   
...............................
 
 
   
..THE BOSTON MA CLIMATE SUMMARY FOR OCTOBER 19 2023
 
 
CLIMATE NORMAL PERIOD 1991 TO 2020  
CLIMATE RECORD PERIOD 1872 TO 2023  
 
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST  
VALUE (LST) VALUE VALUE FROM YEAR  
NORMAL    
...............................................................
 
 
TEMPERATURE (F)  
YESTERDAY  
MAXIMUM 66 144 PM 84 1945 61 5 57  
MINIMUM 52 1151 PM 28 1922 46 6 44  
AVERAGE 59 54 5 51  
 
PRECIPITATION (IN)  
YESTERDAY 0.00 2.06 1932 0.13 -0.13 0.00  
MONTH TO DATE 0.19 2.45 -2.26 3.59  
SINCE SEP 1 3.94 6.01 -2.07 6.19  
SINCE JAN 1 40.50 34.05 6.45 24.12  
 
SNOWFALL (IN)  
YESTERDAY 0.0 T 1972 0.0 0.0 0.0  
MONTH TO DATE 0.0 0.0 0.0 0.0  
SINCE SEP 1 0.0 0.0 0.0 0.0  
SINCE JUL 1 0.0 0.0 0.0 0.0  
 
DEGREE DAYS  
HEATING  
YESTERDAY 6 11 -5 14  
MONTH TO DATE 104 163 -59 132  
SINCE SEP 1 160 234 -74 189  
SINCE JUL 1 160 243 -83 189  
 
COOLING  
YESTERDAY 0 0 0 0  
MONTH TO DATE 10 6 4 3  
SINCE SEP 1 146 97 49 74  
SINCE JAN 1 844 797 47 1024    
...............................................................
 
 
WIND (MPH)  
RESULTANT WIND SPEED 10 RESULTANT WIND DIRECTION S (200)  
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION S (190)  
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION S (180)  
AVERAGE WIND SPEED 10.5  
 
SKY COVER  
POSSIBLE SUNSHINE MM  
AVERAGE SKY COVER 0.5  
 
WEATHER CONDITIONS  
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.  
NO SIGNIFICANT WEATHER WAS OBSERVED.  
 
RELATIVE HUMIDITY (PERCENT)  
HIGHEST 89 1000 PM  
LOWEST 54 100 PM  
AVERAGE 72  
   
......................................................
 
 
THE BOSTON MA CLIMATE NORMALS FOR TODAY  
NORMAL RECORD YEAR  
MAXIMUM TEMPERATURE (F) 61 79 1969  
MINIMUM TEMPERATURE (F) 46 32 1900  
1972  
1974  
 
SUNRISE AND SUNSET  
OCTOBER 20 2023.......SUNRISE 703 AM EDT SUNSET 555 PM EDT  
OCTOBER 21 2023.......SUNRISE 704 AM EDT SUNSET 553 PM EDT  
 
- INDICATES NEGATIVE NUMBERS.  
R INDICATES RECORD WAS SET OR TIED.  
MM INDICATES DATA IS MISSING.  
T INDICATES TRACE AMOUNT.  
 

 
 
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